Computer-assisted surgical system
First Claim
1. A method for planning surgery on a portion of a body with the goals of improving the accuracy of the surgery and reducing the risks associated with surgery, comprising the steps of:
- gathering image data of the portion of a body using a radiant energy means for gathering image data;
storing the image data in a memory means for storing image data;
reading the stored image data into a computer interfaced to the memory means, the computer having a visual display means for visually displaying images generated in at least one process step;
generating a three-dimensional computer model of the body portion from the image data using a modeling means for creating three-dimensional computer models from the image data;
identifying anatomical features relevant to the surgery on the three-dimensional computer model of the body portion; and
using software to define at least one desired correction to the anatomical structures to be accomplished by the surgery.
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Accused Products
Abstract
A method for planning surgery on a body portion is provided in the steps of gathering image data, storing the image data, reading the image data into a computer, generating a three-dimensional computer model of the body portion from the image data, identifying anatomical features relevant to the surgery, and defining at least one desired correction to anatomical structures to be accomplished by the surgery. Also, a method for performing surgery on a body portion is provided in the steps of loading surgical plan data into a computer, registering a three-dimensional computer model of the body portion stored in the surgical plan data to the body portion, providing at least one surgical tool, positioning the surgical tool relative to the body portion and performing the surgery. Further, a jig assembly is provided in the form of a femoral docking jig, a femoral contouring jig, and a tibial jig.
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Citations
55 Claims
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1. A method for planning surgery on a portion of a body with the goals of improving the accuracy of the surgery and reducing the risks associated with surgery, comprising the steps of:
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gathering image data of the portion of a body using a radiant energy means for gathering image data; storing the image data in a memory means for storing image data; reading the stored image data into a computer interfaced to the memory means, the computer having a visual display means for visually displaying images generated in at least one process step; generating a three-dimensional computer model of the body portion from the image data using a modeling means for creating three-dimensional computer models from the image data; identifying anatomical features relevant to the surgery on the three-dimensional computer model of the body portion; and using software to define at least one desired correction to the anatomical structures to be accomplished by the surgery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for planning unicompartmental knee arthroplasty surgery with the goals of improving the accuracy of the surgery and reducing the risks associated with surgery, comprising the steps of:
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gathering image data of a femur and a tibia using a radiant energy means for gathering image data; storing the image data of the femur and tibia in a memory means for storing image data; reading the stored image data into a computer interfaced to the memory means, the computer having a visual display means for visually displaying images generated in at least one process step; generating a three-dimensional computer model of the femur and tibia using a modeling means for constructing three-dimensional computer models from the image data; identifying a hip center on the three-dimensional computer model; identifying a knee center on the three-dimensional computer model; identifying an ankle center on the three-dimensional computer model; defining the line from the hip;
center to the knee center on the three-dimensional computer model;defining the line from the knee center to the ankle center on the three-dimensional computer model; determining a desired varus/valgus correction on the three-dimensional computer model; determining the size and pose of both a femoral prosthetic component and a tibial prosthetic component to accomplish the desired correction on the three-dimensional computer model; and
,determining the size and pose characteristics of resections to be performed on the femur and the tibia as shown in the computer model. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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Specification